Results 81 to 90 of about 423,698 (234)

Reaction of Cows Ovaries to GnRH Administration in Different Estrous Stages

Scientific Papers Animal Science and Biotechnologies, 2023
Administration of GnRH in the luteal phase of estrous in dairy cows induces an increase of LH levels, with the modification of the growth waves of the ovarian follicles.
Casiana Ciolac Șipețan, Ioan Bencsik, Dorel Dronca, Ioan Peț, Lavinia Ștef, Gabi Dumitrescu, Eliza Simiz, Ion Carabă, Mărioara Nicula, Adela Marcu, Mirela Ahmadi, Tiberiu Iancu, Nicolae Păcală   +12 more
doaj  

Different estrous induction methods during the non-breeding season in Kivircik ewes

Veterinární Medicína, 2006
The efficiency of medroxyprogesterone acetate (MAP) sponges in combination with either pregnant mare serum gonadotrophin (PMSG) or cloprostenol (PGF2α) for inducing and synchronizing the estrous cycle in non-lactating Kivircik ewes was investigated ...
I. Dogan, Z. Nur
doaj   +1 more source

Advances in the Use of Recombinant Gonadotropins for Reproductive Biotechnologies in Ruminants: A Review

Reproduction in Domestic Animals, Volume 61, Issue 5, May 2026.
ABSTRACT Recombinant gonadotropins, particularly recombinant follicle‐stimulating hormone (rFSH) and recombinant equine chorionic gonadotropin (reCG), have emerged as viable alternatives to traditional animal‐derived hormones in reproductive biotechnologies. This review aims to provide an updated and comprehensive overview of recombinant gonadotropins,
Vitória Leite Di Domenico, Fabiane Pereira de Moraes, Natália Ávila de Castro, Fernando Caetano de Oliveira, Diogo Magnabosco, Bernardo Garziera Gasperin   +5 more
wiley   +1 more source

Syncronization Technology for The Reproductive Management in Sambar Deer (Rusa Unicolor Brookei)

Animal Production: Indonesian Journal of Animal Production, 2009
Research to study the synchronization technology to improve the reproductive of captive sambar deer (Rusa unicolor brookei) was conducted using 10 hinds and three stags aged 8 -10 years. Estrous induction was done using local intravaginal spon containing
AS Dradjat, G Semiadi
doaj  

Estrous of Goats Undergone Superovulation Induction with Anti-inhibin

Animal Production: Indonesian Journal of Animal Production, 2009
Estrous performance of goats underlying superovulation induction with anti-inhibin was done using anti-inhibin induction on rabbit. Twenty four goats used in this research that divided four groups namely P0 (control), P1 (immunization at days of 4 cycle),
TN Siregar, T Armansyah
doaj  

Impacts of Estrous Synchronization on Cowherd Performance

, 2015
Estrous synchronization and artificial insemination (AI) are reproductive management tools that have been available to beef producers for over 40 years.
Lamb, G. Cliff
core  

Effect of PMSG administration in combination with vaginal sponge on estrous occurrence and litter size of Javanese sheep

Jurnal Kedokteran Hewan, 2018
The use of vaginal sponge in estrous synchronization has been a popular method to uniform estrous cycle of small ruminants. In order to increase the litter size, the use of the sponge is combined with PMSG.
Rangga Setiawan, Siti Darodjah Rasad, Nurcholidah Solihati, Rini Widyastuti, Soeparna Soeparna   +4 more
doaj   +1 more source

Estrous synchronization in agoutis (Dasyprocta leporina) using the Ovsynch protocol, followed by natural mating and evaluation of success via offspring birth

Theriogenology Wild
Research on estrous synchronization and/or induction in the Dasyprocta species remains limited and no previous studies have confirmed reproductive success through offspring birth following hormonal synchronization protocols.
Kavita Ranjeeta Lall, Gary Wayne Garcia
doaj   +1 more source

A simple mathematical model of the progesterone curve during the estrous cycle in Canindé goats (Capra hircus)

Medicina Veterinária
Mathematical modeling of the estrous cycle could help in understanding the dynamics of this complex biological system. Thus, this study aimed to use a mathematical model that accounts for the variations of progesterone during the estrous cycle in ...
Natanael Aguiar Braga Negreiros, Irving Mitchell Laines Arcce, Satish Kumar, Caio Magalhães Freitas, Luciana Magalhães Melo, Vicente José de Figueiredo Freitas, Maiana Silva Chaves   +6 more
doaj   +3 more sources

Estrous Synchronization in Heifers

, 2019
Significant genetic improvements can be achieved through artificial insemination (AI). AI has greatly enhanced the US cattle industry. Slow adoption of AI by beef producers has been well documented. Estrous synchronization is a tool that is commonly used
Richey, Sarah Kaitlin, Burns, Matthew
core